FAQ: What Is The Minimum Plank Width For A Ladder Jack Scaffold?

2 The minimum width of the platform of a ladder jack scaffold shall be 18 inches when a wood plank is being used and 12 inches when a fabricated platform is being used. 17.3.

What is the minimum size for scaffold planks?

Try to plank the entire working level of a scaffold for maximum support and stability. Use a minimum of 48 mm thick Number 1 Grade spruce-pine-fir (SPF) planking or better. Overlap or extend planking 150 mm (6 in.) to 300 mm (12 in.) and cleat at each end to prevent planking from slipping and blowing off.

How wide is a scaffold plank?

Length available: 8ft, 10ft, 13ft. Thickness: 38mm (1.50 inches). Width: 225mm (8.86 inches).

How thick the scaffold plank timber should be?

Planks are often used as a work surface on elevated scaffolding, and need to be wide enough to provide strength without breaking when walked on. The wood is categorized as a board if its width is less than 21⁄2 in (64 mm), and its thickness is less than 11⁄2 in (38 mm).

What is the minimum width of a scaffold?

The standards do specify a minimum platform width of not less than 20″ for two-point suspension scaffolds in Parts 1910.28(g) and 1926.451(i). It is recommended that we promulgate a new standard in Parts 1910.28(a) and 1926.451(a) which will establish a minimum width of 18″ for all scaffold platforms.

What is the minimum weight scaffold planking must be able to support?

Note: Platform units used to make scaffold platforms intended for light-duty use shall be capable of supporting at least 25 pounds per square foot applied uniformly over the entire unit-span area, or a 250-pound point load placed on the unit at the center of the span, whichever load produces the greater shear force.

How far should scaffold planks overlap?

Section 1926.451(b)(7) states, “on scaffolds where platforms are overlapped to create a long platform, the overlap shall occur only over supports, and shall not be less than 12 inches (30 cm) unless the platforms are nailed together or otherwise restrained to prevent movement.” The standard does not specify whether

How wide is a 3 board scaffold?

Traditionally they are seasoned wood and come in three thicknesses (38 mm (usual), 50 mm and 63 mm) are a standard width (225 mm).

What is OSHA Standard for scaffold?

The standard requires employers to protect each employee on a scaffold more than 10 feet (3.1 m) above a lower level from falling to that lower level. What materials are unacceptable for guardrails?

What is the difference between a board and a plank?

is that plank is a long, broad and thick piece of timber, as opposed to a board which is less thick while board is a relatively long, wide and thin piece of sawn wood or similar material, usually intended for use in construction or board can be (basketball|informal) a rebound.

What is the minimum width of a heavy duty work platform?

Platforms should be at least four traditional scaffold planks wide—approximately 900 mm. Use examples include general trades work like tiling and light steel framing. Heavy Duty – up to 675 kg per platform per bay including a concentrated load of 200 kg. Platforms should be at least 1000 mm wide.

Do scaffold planks need to be tied down?

Two-point and multi-point suspension scaffolds shall be tied or otherwise secured to prevent them from swaying, as determined to be necessary based on an evaluation by a competent person.

How wide can a two point scaffold be?

The platform of a two-point suspension scaffold must not be more than 36 inches wide unless designed by a qualified person, and must be surrounded with a standard guardrail and toe board.

What is the minimum length a scaffold plank must overhang the scaffold transom at each end?

The use of 7-foot spans is ideal when using 16-foot planks as this allows a 1-foot overhang at each end.